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Service Notice

The Western Australian Herbarium’s collections management system, WAHerb, and DBCA’s flora taxonomic names application, WACensus, have been set to read-only mode since 1 October 2025. Recent taxonomic changes are not currently being reflected in Florabase, herbarium collections, or the census. The Herbarium team, working with the Biodiversity Information Office, now have the Nomos-hosted WACensus in production, and we will begin to update the flora and fungi for WA within the system soon. The Specify project team continues to test and streamline the new collections management system, and we expect this to be online in October. Please reach out to us if you have any questions or concerns.

The notice period started at 9:45 am on Friday, 12 December 2025 +08:00 and will end at 12:00 pm on Thursday, 1 October 2026 +08:00.

Caulerpa serrulata (Forssk.) J.Agardh

Reference
Mus.Senckenberg. 2:174 (1837)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Scientific Description

Habit and structure. Thallus grey-green or green, spreading laterally to 30 cm, with smooth terete stolons 1.0–2.2 mm diam. Assimilators 4–6 cm tall, generally with an unbranched terete stalk 1.0–1.5 mm diam. Rachis flattened, unbranched or 1 or 2 times dichotomously branched, 2–5 mm wide, occasionally twisted or curled, lacking ramuli but with marginal serrations to 1 mm long.

Distribution. Widely distributed in tropical seas. In W.A. south to Coral Bay.

Habitat. Epilithic in the intertidal and subtidal.

[After Belton, Huisman & Gurgel, Algae of Australia: Mar. Benthic Algae of North-western Australia, 1. Green and Brown Algae 95 (2015)]

John Huisman and Cheryl Parker, 3 August 2021

Distribution

IBRA Regions
Carnarvon, Dampierland, Geraldton Sandplains, Indian Tropical Islands, Northern Kimberley, Pilbara.
IBRA Subregions
Cape Range, Geraldton Hills, Mitchell, Pindanland, Roebourne.
IMCRA Regions
Abrolhos Islands, Canning, Kimberley, Ningaloo, North West Shelf, Oceanic Shoals, Pilbara (nearshore), Pilbara (offshore).
Local Government Areas (LGAs)
Ashburton, Broome, Carnarvon, Derby-West Kimberley, Exmouth, Greater Geraldton, Karratha, Wyndham-East Kimberley.